feat: add DPP_USE_PCH CMake option to use precompiled headers (off by…

… default)
brainboxdotcc · Aug 22, 2023 · 106f793 · 106f793
1 parent 8985170
commit 106f793
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Showing 2 changed files with 10 additions and 0 deletions.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -26,6 +26,7 @@ option(DPP_BUILD_TEST "Build the test program" ON)
 option(DPP_NO_VCPKG "No VCPKG" OFF)
 option(DPP_CORO "Experimental support for C++20 coroutines" OFF)
 option(DPP_USE_EXTERNAL_JSON "Use an external installation of nlohmann::json" OFF)
+option(DPP_USE_PCH "Use precompiled headers to speed up compilation" OFF)
 
 include(CheckCXXSymbolExists)
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

diff --git a/library/CMakeLists.txt b/library/CMakeLists.txt
@@ -230,6 +230,15 @@ foreach (fullmodname ${subdirlist})
 		$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/../include/dpp>
 	)
 
+	if (DPP_USE_PCH)
+		target_precompile_headers(${modname} PRIVATE
+			"${CMAKE_CURRENT_SOURCE_DIR}/../include/dpp/cluster.h"
+			"${CMAKE_CURRENT_SOURCE_DIR}/../include/dpp/json.h"
+			"${CMAKE_CURRENT_SOURCE_DIR}/../include/dpp/utility.h"
+			"${CMAKE_CURRENT_SOURCE_DIR}/../include/dpp/restresults.h"
+		)
+	endif()
+
 	if (WIN32 AND NOT MINGW)
 		if (NOT WINDOWS_32_BIT)
 			target_link_libraries(${modname} PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/../win32/lib/libssl.lib"